Hopkins 47180 - Endurance Multi-Tow 4-Way Flat to 7-Way RV Trailer Adapter w/ 4-Way Vehicle End PlugTow more than one trailer? Take advantage of your existing 4 Flat when adapting. The 47180 attaches to an existing 4 Flat to bring the lighting functions to the 7 Blade and 4 flat connectors, leaving electric brakes, auxiliary power, reverse lights and ground as the only functions that need to be wired. The Multi Tow design feature adds multiple towing options from one connector by providing sockets for towing both 7 Blade and 4 Flat trailers. By